Hey everyone, it's my first time ever posting ,but here goes..
**BTW, all tests were done at 1080p**
I have the same Model GL702VS which as mentioned above had unacceptable thermals while idle (mid 60's) and games would crash after a SHORT while.. and i do mean short
Since i was aware of this thermal issue previously before i bought the device (it was agreat deal compares to europe so i just couldn't pass it up), i decided to apply liquid metal (conductonaut to be excat) and undervolt both CPU and GPU.
The resoults are as followed: before repasting: CPU thermals were in the 60's while idle and at load they have reached a whooping hundred degrees, all of that without any GPU stressing what so ever. The horror (=:
The GPU stress test wasn't any better, reaching it's upper thermal targer of 80°C within seconds (used heaven benchmark on ultra)
Now let's get down to it. my 7700HQ was able to stay stable at -150 mV and tress tests showed a max temp of 89°C. (AIDIA64, all kinds of Prime 95 and my personal favorite, IntelBurnTestV2on extreme setting which can really takes a CPU apart..)
Sooo there was a long way to go.
Upon opening the laptop up iv'e realized that the thermal paste was horribly apllied,and all dried up. so bad in fact, that i thought this must be the work of disgruntled employee. the goop on the VRMs was no better..
Ok so enough complaining and more actions!
old goop cleaned , old thermal paste gone, conductonaut applied, close up and here we go!
well.. not really.. you see, what i have later realized is that the LM was only half of it. a VERY VERY important part was to seal the gap between the heat pipes and the fans, since all i'd say around 50% of the hot air was being blown back inside!
OK, so i reopened and tried my best with the limited fine motoric skills that i have , to fashion a decent seal using M33 knock-off electrical tape (which worked like magic by the way!)
And here some resoults: CPU under full load without graphics tested was an AMAZING 71°C.
Prime 95 + heaven running simultaneously stayed undere 89°C on the CPU at all time, which is pretty great concidering the graphics card was still using all of his might and wasn't undervolted yet.
undervolting the GPU to 1733 @ 800 mV was surprisingly stable. so i chnaged the curve with MSI afterburner to a steady line (not so much of a curve haha) since i was trying to reach max preformance while not having a jet engine in my living room 😛
and the resoult are as followed: while gaming very demanding titles where CPU+GPU utilization we at aroung 100% pretty much all of the time, my cpu reached a temprature of 89°C and the GPU 77°C. now.. i know that might not be the resoult that you guys might have wanted to hear, but i must say i was very pleased with the resoults.
thoughts on drilling holes in the bottom part..
when tested without the lid, the computer not only ran at a MUCH lower temp of ~70ish. the GPU never hit 65°C at full load while OVERCLOCKED to 110MHz on the core and 250 more on the memory, and still kept at it while the CPU never got over 70!
all and all ,incredible! is it worth it though.. i don't know.. if i wanted such a modded Laptop i might have been better off buying a PC.
few things i forgot to mention
1. I used arctic pads for the VRM's (ARCTIC Thermal Pad ,50 x 50 x 1.0 mm)
2. only very demanding games ran the laptop to the upper 80's. most of them didn't even reach more than 68c. howeve, since some of them made the graphics card reach 80c despite the underclock being stable at 1733 MHz 850mV. i managed to take down a notch to 800mV and that made all the doffrence in the world
3.also, all of the temps abo
ve are when the fans were at max 50%. meaning thet at a100% thermal and clock speed (for the GPU) would be much better. and louder.
4. thermal-grizzly claims that conductonaut LM can do 73 W-m-1-K-1. basically, thermal effectiveness that is about 8 times better than any thermal paste.
I think its a flat out lie! and here's why
Galinstan, or better known as liquid metal, only have a 16.5 W-m-1-K-1. so unless they created a whole new compound in their lab,(which they didn't since they clearly state that they have Gallium ,Indium and Tin in their compound and since other ratios will not alloy or will be very very hard to..)
I highly doubt their advertisements.. bottom line, LM is twice as much as thermally conductive a very good thermal paste. at best.
conclusions: buying this laptop for what i paid was , all downsides included, a great deal. for people who have the time and patience to MOD, CUT UNDERVOLT REPASTE LOVE AND CARESS IT.